265387000591 has 2 divisors, whose sum is σ = 265387000592. Its totient is φ = 265387000590.

The previous prime is 265387000517. The next prime is 265387000621. The reversal of 265387000591 is 195000783562.

265387000591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265387000591 - 2¹⁵ = 265386967823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265387000691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132693500295 + 132693500296.

It is an arithmetic number, because the mean of its divisors is an integer number (132693500296).

Almost surely, 2^265387000591 is an apocalyptic number.

265387000591 is a deficient number, since it is larger than the sum of its proper divisors (1).

265387000591 is an equidigital number, since it uses as much as digits as its factorization.

265387000591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 265387000591 in words is "two hundred sixty-five billion, three hundred eighty-seven million, five hundred ninety-one", and thus it is an aban number.